//
//  EmptyModel.m
//  BusinessMarket
//
//  Created by Michael Li on 2018/12/8.
//  Copyright © 2018年 Michael Li. All rights reserved.
//

#import "EmptyModel.h"

@implementation EmptyModel


+ (BOOL)stringIsNullOrEmpty:(id)str
{
    return (str == nil || [str isKindOfClass:[NSNull class]] || [NSString stringWithFormat:@"%@",str].length == 0);
} 

@end
